2015 Fiscal Year Final Research Report
Precision laser spectroscopy of atoms and ions in superfluid helium
| Project/Area Number |
24350016
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Hosei University (2014-2015)
The Institute of Physical and Chemical Research (2012-2013) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | .レーザー分光 / マトリックス分光 / 超流動ヘリウム / 光ポンピング / レーザー・ラジオ波二重共鳴 / レーザー核分光 |
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| Outline of Final Research Achievements |
Superfluid helium (He II) is an intriguing host matrix for laser spectroscopy of atoms and ions due to its characteristic properties such as transparency in the wide range of wavelength from ultraviolet to radio frequency, low temperature, and small effectiveness to spins. However, precision measurement of guest atoms and ions is usually difficult in liquid media because of interaction with surrounding atoms. In order to apply precision spectroscopy using optical pumping and double resonance method to atoms and ions in He II, we conducted experiments; introduction to He II and optical detection of ions, construction of a pulsed laser for optical pumping of atoms and ions in He II and its application to laser-microwave/radio frequency double resonance spectroscopy, utilization of ion beams produced at an accelerator facility as ion sources. We have achieved higher precision and accuracy of the double resonance measurement for atoms and ions in He II.
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| Free Research Field |
.レーザー分光
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